import javax.swing.*;
import java.awt.event.*;
import java.util.*;
import java.awt.*;
import javax.swing.JLabel;public class face
{
public static void main(String [] argv)
{
face_frame frame=new face_frame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
} class face_frame extends JFrame
{
public face_frame()
{
setTitle("Face Change");
setSize(400,400);
JPanel panel=new JPanel();
JButton cryButton =new JButton("流泪");
JButton smileButton =new JButton("微笑");
JButton angryButton =new JButton("生气");
JButton exitButton =new JButton("退出");
panel.add(cryButton);
panel.add(smileButton);
panel.add(angryButton);
panel.add(exitButton);
//add(panel,"South");
JLabel pLabel = new JLabel("");
add(pLabel,"Center");
setLayout(null);
add(panel);
panel.setBounds(0,300,300,45);
//监听器对象的生成
FaceAction cryAction=new FaceAction("cry.gif");
FaceAction smileAction=new FaceAction("smile.gif");
FaceAction angryAction=new FaceAction("angry.gif"); //事件源在监听器中的注册
cryButton.addActionListener(cryAction);
smileButton.addActionListener(smileAction);
angryButton.addActionListener(angryAction);
exitButton.addActionListener(new ActionListener() //退出事件 { public void actionPerformed(ActionEvent event) {
System.exit(0); }
}); } JLabel pLabel = new JLabel(""); public class FaceAction implements ActionListener // 定义监听器 { public FaceAction(String filename) { name=filename;
picture = new ImageIcon(name); } public void actionPerformed(ActionEvent event)
{
add(pLabel,"Center");
pLabel.setIcon(picture);//为什么picture出现在face_frame面板的左边?怎么让它出现在面板的中央? } private ImageIcon picture; } private String name; }/*
JLabel pLabel = new JLabel("");
ImageIcon picture = new ImageIcon("图片名");
pLabel.setIcon(picture);
*/
import java.awt.event.*;
import java.util.*;
import java.awt.*;
import javax.swing.JLabel;public class face
{
public static void main(String [] argv)
{
face_frame frame=new face_frame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
} class face_frame extends JFrame
{
public face_frame()
{
setTitle("Face Change");
setSize(400,400);
JPanel panel=new JPanel();
JButton cryButton =new JButton("流泪");
JButton smileButton =new JButton("微笑");
JButton angryButton =new JButton("生气");
JButton exitButton =new JButton("退出");
panel.add(cryButton);
panel.add(smileButton);
panel.add(angryButton);
panel.add(exitButton);
//add(panel,"South");
JLabel pLabel = new JLabel("");
add(pLabel,"Center");
setLayout(null);
add(panel);
panel.setBounds(0,300,300,45);
//监听器对象的生成
FaceAction cryAction=new FaceAction("cry.gif");
FaceAction smileAction=new FaceAction("smile.gif");
FaceAction angryAction=new FaceAction("angry.gif"); //事件源在监听器中的注册
cryButton.addActionListener(cryAction);
smileButton.addActionListener(smileAction);
angryButton.addActionListener(angryAction);
exitButton.addActionListener(new ActionListener() //退出事件 { public void actionPerformed(ActionEvent event) {
System.exit(0); }
}); } JLabel pLabel = new JLabel(""); public class FaceAction implements ActionListener // 定义监听器 { public FaceAction(String filename) { name=filename;
picture = new ImageIcon(name); } public void actionPerformed(ActionEvent event)
{
add(pLabel,"Center");
pLabel.setIcon(picture);//为什么picture出现在face_frame面板的左边?怎么让它出现在面板的中央? } private ImageIcon picture; } private String name; }/*
JLabel pLabel = new JLabel("");
ImageIcon picture = new ImageIcon("图片名");
pLabel.setIcon(picture);
*/
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;public class face {
public static void main(String[] argv) {
face_frame frame = new face_frame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}class face_frame extends JFrame {
public face_frame() {
setTitle("Face Change");
setSize(400, 400);
setLayout(new BorderLayout());
JPanel panel = new JPanel();
JButton cryButton = new JButton("流泪");
JButton smileButton = new JButton("微笑");
JButton angryButton = new JButton("生气");
JButton exitButton = new JButton("退出");
panel.add(cryButton);
panel.add(smileButton);
panel.add(angryButton);
panel.add(exitButton);
// add(panel,"South");
/*JLabel*/ pLabel = new JLabel("Emotion");
add(new JLabel("East"), BorderLayout.EAST);
add(new JLabel("West"), BorderLayout.WEST);
add(new JLabel("North"), BorderLayout.NORTH);
add(pLabel, BorderLayout.CENTER);
add(panel, BorderLayout.SOUTH);
panel.setBounds(0, 300, 300, 45); // 监听器对象的生成
FaceAction cryAction = new FaceAction("cry.gif");
FaceAction smileAction = new FaceAction("smile.gif");
FaceAction angryAction = new FaceAction("angry.gif"); // 事件源在监听器中的注册
cryButton.addActionListener(cryAction);
smileButton.addActionListener(smileAction);
angryButton.addActionListener(angryAction); exitButton.addActionListener(new ActionListener() // 退出事件 { public void actionPerformed(ActionEvent event) {
System.exit(0); }
}); } JLabel pLabel = new JLabel("Emotion"); public class FaceAction implements ActionListener // 定义监听器 { public FaceAction(String filename) { name = filename;
picture = new ImageIcon(name); } public void actionPerformed(ActionEvent event) {
add(pLabel, "Center");
System.out.println(picture.getImageLoadStatus());
pLabel.setIcon(picture);// 为什么picture出现在face_frame面板的左边?怎么让它出现在面板的中央? } private ImageIcon picture; } private String name;}/*
* JLabel pLabel = new JLabel(""); ImageIcon picture = new ImageIcon("图片名"); pLabel.setIcon(picture);
*/